google of X results regex pattern for php function preg_match

Im new to regex but not new to the php language. Im looking for a regex pattern that will capture the number of results from "ANY" of the following snippets... Also the content being searched is basically ALL the html from a google search so it needs to be precise and character limited so it doesnt pick up "of about" or "</b>" somewhere later in the content...

CODE:
preg_match($regexpattern,$content,$result);
print $result[1];

EXAMPLES:

CONTENT: Results <b>1</b> - <b>5</b> of <b>5</b> for
RESULT SHOULD BE: 5

CONTENT: Results <b>1</b> - <b>10</b> of about <b>15,000,000</b> for
RESULT SHOULD BE: 15000000

CONTENT: Results <b>1</b> - <b>8</b> of about <b>12,000</b> for
RESULT SHOULD BE: 12000

CONTENT: Results <b>1</b> - <b>8</b> of <b>987</b> for
RESULT SHOULD BE: 987

Featured Post

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

Both Easy and Powerful
How easy is PHP? http://lmgtfy.com?q=how+easy+is+php (http://lmgtfy.com?q=how+easy+is+php) Very easy. It has been described as "a programming language even my grandmother can use."
How powerful is PHP? http://en.wikiped…

Foreword (July, 2015)
Since I first wrote this article, years ago, a great many more people have begun using the internet. They are coming online from every part of the globe, learning, reading, shopping and spending money at an ever-increasing ra…

The viewer will learn how to create a basic form using some HTML5 and PHP for later processing.
Set up your basic HTML file. Open your form tag and set the method and action attributes.:
(CODE)
Set up your first few inputs one for the name and …